-ic c-- ccc cci cck cco ccr ccs ccu ci- cic cii cik cio cir cis ciu ckc cki cko cks co- coc coi cok coo cor cos cou crc cri crk cro crr crs cru csc csi csk cso csr css csu cuc cui cuk cuo cur cus cuu icc ici ick ico icr ics icu iic iii iio iir iis iiu ikc iki ikk iko ikr iks iku io- ioc ioi ioo ior ios iou ir- irc iri irk iro irr irs iru is- isc isi isk iso isr iss isu iu- iuc iui iur ius kcc kci kck kcr kcs kcu kic kii kik kio kir kis kiu kkc kki kkk kkr kks kku koc koi kok koo kor kos kou krc kri krk kro krr krs kru ksc ksi ksk kso ksr kss ksu kuc kui kuk kur kus kuu o-i oc- occ oci ock oco ocr ocs ocu oic oii oik oio oir ois oiu okc oki okk oko okr oks oku oo- ooc ooi ook ooo oor oos or- orc ori ork oro orr ors oru os- osc osi osk oso osr oss osu ou- ouc oui ouk ouo our ous rcc rci rco rcr rcs rcu ric rii rik rio rir ris rkc rkk rko rks rku roc roi rok roo ror ros rou rrc rri rrk rrr rrs rru rsc rsi rsk rso rsr rss rsu ruc rui ruk ruo rur rus ruu scc sci sck sco scr scs scu sic sii sik sio sir sis siu sk- skc ski skk sko skr sks sku soc soi sok soo sor sos sou sr- src sri srk sro srr srs ss- ssc ssi ssk sso ssr sss ssu suc sui suk suo sur sus suu ucc uci uck uco ucr ucs ucu uic uii uio uir uis uiu ukc uki ukk ukr uku uoc uok uoo uor uos ur- urc uri urk uro urr urs uru usc usi usk uso usr uss usu uuc uur uus uuu